This is an option 3.0mm rear sway bar. This sway bar is .1mm stiffer than the stock sway bar that comes with the MRX6R. This is a great option to have so you can tune your car as track conditions change.

This is an option 2.8mm rear sway bar. This sway bar is .1mm softer than the stock sway bar that comes with the MRX6R. This is a great option to have so you can tune your car as track conditions change.